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Compact black rectangular car amplifier with silver trim and control panel

Power Acoustik

Power Acoustik RZ42000DSP 2000W 4-Channel Class D car amplifier with DSP and Bluetooth

SKU CH-29ZD-BCTHD

Four-channel Class D amplifier delivers 2000 watts with built-in DSP, Bluetooth control, 10-band EQ per channel, and adjustable crossovers up to 48 dB per octave

  • 2000 W max power drives four channels
  • Class D efficiency in 4.75 chassis
  • 100 dB ADC and 104 dB DAC dynamic range
  • 10-band EQ per channel with 20 dB boost or cut
  • Bluetooth app and USB control for DSP tuning

Razor Series 4-Channel Class D Amp

The Power Acoustik RZ42000DSP is a 2,000-watt max 4-channel Class D car amplifier with integrated DSP and Bluetooth control. It targets enthusiasts who want professional-grade sound processing without adding a separate processor to the signal chain. The compact 4.75-inch chassis allows versatile installation in tight vehicle spaces. MOSFET power supply with audiophile-grade components drives the high-efficiency topology.

Upgrade from Basic Amplifiers

This unit replaces a standard amplifier plus an external DSP by combining high-power amplification with 100dB dynamic range ADC and 104dB dynamic range DAC in one chassis. The jump is worth it when you need independent 10-band graphic EQ per channel, variable crossovers from 20Hz to 20kHz with slopes up to 48dB/octave, and up to 20ms channel delay in 0.05ms increments. SigmaStudio interface with response display enables precise tuning via USB or mobile app.

Build Integration Needs

The amplifier accepts 30V max high-level and 4V max RCA inputs, with optional channel mixing and independent level control from +6dB to -60dB. Two-channel RCA output allows subwoofer amplifier integration without extra splitters. Bluetooth module enables optional high-level input for hands-free operation. Independent 0/180 phase control and variable Q adjustment from 0.4 to 9.6 per band provide full system integration flexibility.

How it compares

Measured against everything we stock in Car Audio Amplifiers, at today’s prices. Recalculated every night.

Price $185.99
Cheaper than about 59% of the 158 comparable items (median $225.49).

Specifications

No published specifications for this item yet.

Questions about this item

What chassis depth does the 4.75-inch Razor amp need for mounting?

The compact 4.75-inch chassis fits tight spaces; verify your mounting surface has at least that depth plus clearance for wiring and ventilation.

How is the DSP configured and which connection step is often missed?

Connect the amp to a PC via USB or pair the Razor DSP app over Bluetooth; the step many miss is enabling the high-level or RCA input in the software before tuning.

Which replaceable part protects the MOSFET supply if a fault occurs?

An external fuse on the power lead protects the MOSFET supply; carry a spare of the same rating so you can restore operation quickly.

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